I have two Lists. Each time a nintex form is filled in, it creates a new item in list A which includes amongst other fields a field for 'Surname' and a field called 'Compliant'.
List B is a current list of all employees, approx 500 entries
Each time a new item is added to list A, I would like to update the Field named 'RR_Compliant' with value = 'Yes' in List B for the list item with the same surname as the one entered in list A.